"Our motto is clear. Whosoever wants to come on our terms believing in Congress ideology and whosoever wants to expose the misrule of TMC, may come," Ahmed, in-charge of the state, told a Bengali news channel.
He also ruled out the possibility of Congress allying with the TMC in the next Lok Sabha election.
"There is no scope for alliance. We have faced problems," he said.
This had prompted the TMC leadership to slap show-cause notices on the three MPs for alleged anti-party activities.
Somen Mitra had later said that he would take a decision after the puja festival on the issue of his continuing in the party.